| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 82 of 140 | 41% | 12 of 16 | 25% | 12 | 17 | 17 | 30 | 4 | 9 |
| removeEdge(Object, Object) | | 0% | | 0% | 3 | 3 | 6 | 6 | 1 | 1 |
| edgeExists(Object, Object) | | 0% | | 0% | 3 | 3 | 5 | 5 | 1 | 1 |
| addEdge(Object, Object) | | 65% | | 50% | 2 | 3 | 2 | 6 | 0 | 1 |
| edgesFrom(Object) | | 68% | | 50% | 1 | 2 | 1 | 4 | 0 | 1 |
| size() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| isEmpty() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| addNode(Object) | | 88% | | 50% | 1 | 2 | 1 | 4 | 0 | 1 |
| DirectedGraph() | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| iterator() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |